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4046A

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ID = 17484
       
Country:
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Developer: Standard Telephones and Cables Ltd. (STC); London, Foots Cray 
Tube type:  Vacuum Pentode   Audio Frequency 
  Ca. 1925 up to 1945 very rare. ***
Identical to 4046A = CV244 = VT122_GPO
Similar Tubes
Normally replaceable-slightly different:
  5A/128B ; MS/Pen

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact with a cap.
Was used by Telephony
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description

Tube also made in Australia by Standard Telephones and Cables Ltd, Sydney.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   
Universal Vade-Mecum, Electron Valves and Semiconductor Devices

e442~~2.png 4046A: Fin Stewart
Fin Stewart


Just Qvigstad

Collection of

 
gb_stc_4046a_hk12.jpg

4046A
 

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